How can I change the camera to include more of my scene?
This is the Default 35mm frame





There are two ways you can bring more content into frame.




Lower the focal length of the camera, in this case from 35mm to 25mm





Back the camera up (I prefer fly mode over grabbing because I can see the result while doing so)


Go into fly mode, shift + f, 
do not move the mouse while doing this (otherwise you will change what you are looking at)
back up, s







Note that cameras with a low focal length can look weird, look at this 10mm example